chore: remove deprecated runner from workflow (#72)

The ubuntu-18.04 environment is deprecated, consider switching to ubuntu-20.04(ubuntu-latest), or ubuntu-22.04 instead. For more details see actions/runner-images#6002

Signed-off-by: Aman Prashant <aman.prashant@broadcom.com>

Author: amanPras

.github/workflows/publish.yml

@@ -7,7 +7,7 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-latest
 
 
     steps: